Trifluoroacetic acid → (3R)-3-{3-[(Benzylamino)carbonyl]-1,2,4-oxadiazol-5-yl}-6-cyclohexylhexanoic acid
反応式
[CH2:1]([NH:8][C:9]([C:11]1[N:15]=[C:14]([C@H:16]([CH2:25][CH2:26][CH2:27][CH:28]2[CH2:33][CH2:32][CH2:31][CH2:30][CH2:29]2)[CH2:17][C:18]([O:20]C(C)(C)C)=[O:19])[O:13][N:12]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.FC(F)(F)C(O)=O>ClCCl>[CH2:1]([NH:8][C:9]([C:11]1[N:15]=[C:14]([C@H:16]([CH2:25][CH2:26][CH2:27][CH:28]2[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33]2)[CH2:17][C:18]([OH:20])=[O:19])[O:13][N:12]=1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1参加物
4
実験手順
A solution of tert-butyl (3R)-3-{3-[(benzylamino)carbonyl]-1,2,4-oxadiazol-5-yl}6-cyclohexylhexanoate (Preparation 16b) (173 mg, 0.38 mmol) in dichloromethane (4 ml) was treated with trifluoroacetic acid (1 ml) and the resulting mixture was stirred at room temperature under a nitrogen atmosphere for 17 hours. The solvent was removed under reduced pressure and the residue azeotroped from toluene to afford the title compound as a beige solid (155 mg).